I wear prescription sunglasses when I play. They are Oakley and with very light bronze lenses. I am near sighted so I need them for those long 350 yard drives (give or take a 100 yards). I've had several different lenses and went with the lightest shade because when it starts to get dark or on cloudy days, the darker lenses weren't working. The ball looks a little blurry at address but I got used to that. I take them off when around the green so I can read the greens a little better.

I have few pair of Oakley prescription sunglasses. The reason for the different pairs is because of different lenses.
Light bronze - used the most
Dark Lense - in case of a real bright day
Clear Lense - for play on cloudy days or late twilight play

I know this sounds crazy, but I can't see distance and can't pull the trigger on Lasik Surgery.

Oakley has a prizim golf lens designed specifically for golf. I have them with my prescription and it really helps!

I get my glasses from the VA Hopsital Specialty Clinic. I wear bifocals, transitional sunglasses (dark grey) with anti glare. They are fantastic and never have to switch from one to another. The price is right. Only cost me six years in the AF.